There are approximately 3 million unintended pregnancies in the United States each year.
Did you know?
Asthma cases in Americans are about 75% higher today than they were in 1980.
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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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Thyroid conditions may make getting pregnant impossible.
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To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.
True-color image of layers of haze in Titan's atmosphere.
true story
Which of the following statements is true of linkage?